Stadium: Court 8 Round: 25 Ground: Clay
| ITF M15 Bucharest | 2021/05/25 15:00 | Facundo Juarez v Louis Wessels | 6-2,6-0 |
| ITF M15 Troisdorf | 2021/05/14 16:10 | Louis Wessels v Sebastian Fanselow | 4-6,5-7 |
| ITF M15 Troisdorf | 2021/05/13 11:45 | Louis Wessels v Marlon Vankan | 4-6,6-2,7-6 |
| ITF M15 Troisdorf | 2021/05/12 11:40 | Louis Wessels v Glenn Smits | 6-1,6-3 |
| ITF M15 Sibenik | 2021/04/21 08:00 | Louis Wessels v Simon Beaupain | 7-5,1-6,5-7 |
| ITF 25 Meerbusch | 2021/04/14 10:00 | Louis Wessels v Niels Visker | 2-6,2-6 |
| ITF M25 Naples | 2021/02/25 18:10 | Diego Hidalgo v Louis Wessels | 6-2,6-4 |
| ITF M25 Naples | 2021/02/24 18:45 | Louis Wessels v Bjorn Fratangelo | 6-7,7-5,6-4 |
| ITF M25 Alkmaar | 2021/06/21 18:30 | Carlos Lopez Montagud v Benjamin Dhoe | 6-3,6-4 |
| ITF M15 Marbella | 2021/05/27 07:30 | Carlos Lopez Montagud v Roman Andres Burruchaga | 6-7,2-6 |
| ITF M15 Marbella | 2021/05/25 12:05 | Mick Lescure v Carlos Lopez Montagud | 3-6,5-7 |
| ITF M25 Vic | 2021/05/21 12:55 | Carlos Lopez Montagud v Pedro Cachin | 1-6,6-4,1-6 |
| ITF M25 Vic | 2021/05/20 09:00 | Carlos Lopez Montagud v Raul Brancaccio | 6-1,1-6,6-2 |
| ITF M25 Vic | 2021/05/19 13:50 | Filip Cristian Jianu v Carlos Lopez Montagud | 6-7,4-6 |
| ITF M25 Vic | 2021/05/18 08:00 | Gijs Brouwer v Carlos Lopez Montagud | 4-6,6-3,7-10 |
| ITF M25 Vic | 2021/05/17 09:00 | Ivan Bas Mengual v Carlos Lopez Montagud | 1-6,0-6 |